A Universal UHF RFID Reader IC in 0.18-µm CMOS Technology

A Robust Baseband Demodulator for ISO 18000-6C RFID Reader Systems

“…Despite the advantages of analog filters such as high speed and large dynamic range, the performance of analog filters is limited by the accuracy of imperfect electronic components. Figure 2 shows the frequency response comparison between a digital FIR filter and three most commonly used analog filters in RFID systems: Butterworth, Chebyshev, and Elliptic [10,18]. The frequency response is for a bandpass filter which provides a bandwidth limitation of 300 kHz specified in the DRM regulations.…”

Advances in RFID Components Design: Integrated Circuits

“…The amplifier is used to increase the signal voltage for easier analog to digital conversion. 10 bit pipe-lined ADC is used to convert analog signal to digital signal (Khannur et al, 2008). The purpose of this block is to convert digital I and Q data to RF signal.…”

“…The purpose of this block is to convert digital I and Q data to RF signal. Current steering 10 bit DAC (Khannur et al, 2008) are used to convert digital signal to analog signal. The low pass filter (LPF) is used to eliminate spectral spur and to ensure the transmit spectrum fits well into transmit mask.…”

“…The current research trend in RFID integrated circuit is more on reader than tag. SiGe BiCMOS (Chiu et al, 2007), 0.18 μm CMOS (Wang et al, 2007, Khannur et al, 2008 are amoung technologies used in the latest reader resarch and product. The measurement methodology of advanced RFID components is also discussed in the last topic.…”

A multimode, power-adjustable transmitter for UHF mobile RFID reader

“…Potential applications of RFID are currently driving hardware developers to merge RFID readers into mobile devices such as PDAs and cell phones, which will enable individual customers to acquire product information through their own RFID readers [1][2][3][4].…”